Universal joint.



No. 885,401. PATENTED APR. 21, 1908. G. P. TADINI.

UNIVERSAL JOINT.

APPLICATION FILED NOV. 18, 1907.

Ma 951 F1 0- mihd GEROME F. TADINI,

or NEW YORK, N. Y.-

' Specification of Letters Patent.

Patented. April 21, 1908;

Application filed November 18, 1907. Serial No; $02,576.

fro all whom it may concern:

a Be it known that I, .GEROME F. TADINI, a citizen of the United States, residing at the borough ofManhattan, in the city, county, andrState of New York, have invented an Improvement in Universal Joints, of which the following is a specification.

. drive sha My invention relates to a universal joint,

' and the object thereof is the rovision of a universal joint or shaft coup ing in which there is approximately no dead center point. In carr mg out the invention, I employ a f t, a head therefor, a driven shaft, a

head for the said driven shaft, a series of rods each secured at one end in one of the said heads and adapted to swing therein, and at the other end to pass through and to he slidable in the other of said heads, and means in con'unction with the slidable or free end of sec movement thereof and to prevent the same from becoming displaced in the head in which means of screws 15 or otherwise. 4o

it slides, all of which will be hereinafter more particularly. described.

In the drawing, Figure 1 is an elevation of my improved universal joint. Fig. 2 is a section on line ac, a), Fig. 1, looking in the-direction of the arrow. Fig. 3 is a section on line 'y, 1], Fig. 1, looking in the direction of the arrow, and Fig. .4 is a central longitudinal section of the partsas shown in Fig. 1.

In carrying out my invention, and as illustrated in the drawing, I employ a drive shaft indicated at 10, provided at one end with a suitable head 11. I also employ a driven shaft indicated at 12, which is'provided at the end thereof with a head 13 and on the face of the head 11 a plate 14.is secured by I also employa series of rods indicated at 16 and each of which referablycomprises an elongated cylindrica body portion which at one extremityis provided with a ball end 17. The face of the head 11 is provided with semicircular recesses indicated at 18 and the plate 14 with a corresponding number of recesses 19 corresponding in curvature with the recessesj18, there being'apertures 20 through the late 14 leading into each of the recesses 19 t erein, the said recesses 18 and the recesses 19 and their apertures 20 preferably being in equidistant spaced positions in the said head 11 and late 14, and each of which is adapted to receive the ball end 17, the rod '16 thereof as will be understood, extending through an aperture 20 in the plate 14.

of thesaid rods to limit the slidable 1 Referring particularly to the head 13 on the ra ial pockets 21, and as will be apparent,

the rods 16 and to act as bearings for these rods in which the same may slide. Each rod 164within the pocket 21 through which it a suitable position thereon by means of a set screw 24 or otherwise; the function of the collar 23 as will be manifest, is not only-to limit the slidable movement of the rods .16 in their bearings.22 in the head l3,but also to placed from said bearin s. i

It will be understoo that while I have shown the drive shaft in alinement with the driven shaft, the latter shaft may be driven at any an le to the drive shaft within the limits of the slidable movement of the rods in the head 13, and also that while the hereinbefore described structure is generally aplicable I for any use to which a universal oint for shafting may be employed, it is particularly designed for use in motor vehicles. I claim as my invention: 1. Ina universal joint, a drive shaft, a head secured thereto, a driven shaft, a head secured to said driven shaft, a series of rods each secured at one end in one of said heads and adapted to swingtherein and to pass into and slide in the other of said heads, and means for limiting the movement of the said r0 s.

2. In 'auniversal joint, a drive shaft, a head connected thereto, a driven shaft, 8.

being provided a series of sockets in one of the saldhead's and a corresponding series of radially disposed pockets and a like number of transverse bores in the other of said heads a plurality of rods each adapted at one end to be received in one of the said sockets in the said bores and pass through one of the said pockets in the other ofthe said heads, and means within eachof the said ockets the movement of the said rod.

3. In a; universal joint, a drive-shaft, a head connected therewith, a plate, means for securing the said plate to the outer face of the ing ap roximately centrally through one ofv the transverse bores 22 are adapted to receive and surrounding therodtherein for lmiting =the driven shaft 12, it will be-seen that the a passes, is provided with a collar 23 secured in insure the said rods from becoming dishead connected to said driven shaft, there one head and at the other to slide in one of.

' said head, there being provided a series of equally spaced sockets formed between the sand head and plate, with an opening through the said plate to each socket, a driven shaft, a head therefor, there being rovided a series of e ually spaced bores in t e last aforesaid hea corresponding in number with the said sockets, a series of cylindrical rods each provided at one extremity with a ball end adapted to fit within one of the said sockets, each rod passing through the opening in said plate corresponding to the socket in which its ball end is secured, and the other end thereof sliding in one of the said bores in the said head connected to the driven shaft, and means associated with each of the said rods for limiting the slidable movement thereof. 4. In a universal joint, a drive shaft, a head connected therewith, a plate, means for securing the saidplate to the outer face of the i said head, there being provided aseries of equally spaced sockets formed between the said head and plate, with an opening through 1 the said plate to each socket, a driven shaft, a head connected to said driven shaft, there i being provided in the last aforesaid head a sea s01 each of said rods passing through an opening in the said plate corresponding to the socket in which the ball end of the rod is secured, the other end of each of said rods being adapted to fit into and slide Within one of the said bores in the head connected to the driven shaft and to pass through a pocket in the last aforesaid head, a collar surrounding each of the said rods within its pocket and a set-screw for securing each collar in position on its rod.

GERQME F. TADIN I.

Witnesses: I

GEo. T. PINCKNEY, E. ZACHARIASEN.

Signed by me this 17th day of October, 

